Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932792AbZJIBPw (ORCPT ); Thu, 8 Oct 2009 21:15:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932433AbZJIBPu (ORCPT ); Thu, 8 Oct 2009 21:15:50 -0400 Received: from mail-qy0-f172.google.com ([209.85.221.172]:54763 "EHLO mail-qy0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932143AbZJIBPt (ORCPT ); Thu, 8 Oct 2009 21:15:49 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=iWIRYbqNcoWOSzelnMQzUrOZ8evxnl0F/pAnsp5Vt/ybnj7/RGRw8VNSB0iKMrR3nv EZAX4gMUJ1nEuAMkQDjDVRyQnai/HzRaZbxsW/kkfmNrytVvEUKr2BrG3VuYpW/vpstD RWODC9o+wndiBqFXBT83klLxn+INSidfwDnVk= Message-ID: <4ACE8E9D.2040009@gmail.com> Date: Thu, 08 Oct 2009 19:15:09 -0600 From: Robert Hancock User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.4pre) Gecko/20090922 Fedora/3.0-2.7.b4.fc11 Thunderbird/3.0b4 MIME-Version: 1.0 To: Andreas CC: linux-kernel@vger.kernel.org Subject: Re: Allocated Mem - 700MB missing References: <20091008175939.GA31126@logic.univie.ac.at> In-Reply-To: <20091008175939.GA31126@logic.univie.ac.at> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1147 Lines: 29 On 10/08/2009 11:59 AM, Andreas wrote: > Hi experts! > > Where are the missing 700MB ??? (4GB installed) > 700 MB is too much, that can't be only because of version-differences! > > I compared (unmodified) stable/testing kernels with Xen and OpenVZ-kernel: > all out of main debian packages: > > Only3200: > ---------- > *Linux host 2.6.18-5-686 #1 SMP Mon Dec 24 16:41:07 UTC 2007 i686 GNU/Linux > *Linux knoppix 2.6.24.4 #2 SMP PREEMPT Tue Mar 25 21:35:28 CET 2008 i686 GNU/Linux > *Linux host 2.6.26-2-686 #1 SMP Sun Jun 21 04:57:38 UTC 2009 i686 GNU/Linux > > > Full4GB: > --------- > *Linux host 2.6.26-2-openvz-686 #1 SMP Sun Jun 21 07:07:25 UTC 2009 i686 GNU/Linux Check the kernel configuration. For 32-bit kernels you need CONFIG_HIGHMEM64G enabled to use memory above 4GB (including in your case, because of the PCI, etc. memory holes). Though it would be better to use a 64-bit kernel. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/